In Summary T he oil and gas industry on the UK Continental Shelf (UKCS) strives to continuously improve environmental performance and efficiency in a mature basin where production is increasingly technically challenging. Over recent years industry has improved production efficiency and reduced the associated costs of oil and gas operations while maintaining environmental performance and minimising the risk of environmental harm. The Offshore Petroleum Regulator for Environment and Decommissioning (OPRED), part of the Department for Business, Energy & Industrial Strategy (BEIS), regulates the industry’s offshore emissions and discharges. UKCS operators must apply for a permit for emissions to air or discharges to sea, and these must be reported to OPRED through the Environmental Emissions Monitoring System (EEMS). As part of the permit application, companies must assess the potential environmental effects of their operations and put in place mitigation measures. The emissions and discharges monitored include: produced water, chemicals, drill cuttings, greenhouse gas emissions, gas flared and vented, and the amount of waste generated by upstream oil and gas operations. Environment Report 2018 Facts and Figures PermiƩ d Offshore Emissions nd Discharges DRAFT The total volume of produced water discharged to sea under permit fell by 3 per cent to 143 million cubic metres in 2017 When applying for a permit for emissions and discharges, industry must consider potenƟal environmental effects and their miƟgaƟon Environment Report 2018 Facts and Figures PermiƩed Offshore Emissions and Discharges DRAFT The total volume of produced water discharged to sea under permit fell by 3 per cent to 143 million cubic metres in 2017 When applying for a permit for emissions and discharges, industry must consider potenƟal environmental effects and their miƟgaƟon Of the chemicals discharged to sea under permit, were classified as those that Pose LiƩle Or No Risk (PLONOR) to the environment 71% All emissions and discharges are strictly controlled and permiƩed by the industry’s environmental regulator – The Offshore Petroleum Regulator for Environment and Decommissioning When applying for a permit for emissions and discharges, industry must consider potenƟal environmental effects and their miƟgaƟon Total greenhouse gas emissions comprise f the UK's total emission 3 %

The total volume of produced water discharged to sea under permit fell by 3 per cent

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to 143 million cubic metres in 2017

Minimising discharges to sea and aiding hydrocarbon recovery, reinjecƟon of produced water at its highest recorded level Minimising discharges to sea and aiding hydrocarbon recovery, reinjecƟon of produced water at its highest recorded level The amount of waste generate offshore decreased by 10% in 2017